bimetallism n. [银] 复本位制度 A bimetallic standard is a monetary standard where the monetary unit is defined as consisting of either a certain amount of a metal or a certain amount of another, with the monetary authority being ready at all times to coin either metal at the legal price. 在此复本位制下，货币单位定义为可含一定量的两种金属中的任一种，货币当局可在任何时间以法定价格铸币。
binary option [分] 两值期权来源：考试大 Binary options stipulate a fixed payment at maturity, regardless of the moneyness (it only has to be positive). 是指现金或无价值期权、资产或无价值期权的总称。
binder n. [房] 临时契约来源：考试大 A preliminary agreement to purchase a property accompanied by a forfeitable deposit which is lost if the purchaser does not complete the purchase of the property. 附带押金的初期购买协议。来源：考试大
binomial option pricing model [分] 二项式期权定价模型 An option pricing model in which the underlying asset can assume one of only two possible, discrete values in the next time period for each value that it can take on in the preceding time period. 是指一种估价等式。它假设标的资产的价格变化是通过一系列不连续的向上或向下运动完成的。
biweekly loan [房] 双周房屋贷款来源：考试大 A loan which features payments equalling one half of the usual monthly payment made every two weeks (to total 26 in a year), thus substantially reducing the life of the mortgage and the interest payable over the life of the mortgage. 每两周付款一次(每年26次)的房屋贷款，可大大缩短贷款周期以及贷款期支付的利息。